That would probably work, I'd definitely try to get a female for that setup though. You can tell males by the dark stripe down down their belly. The male and the female are both a little over 1 inch. The female is slightly rounder and has distinct spots on a green background. The male is almost completely olive green, except for his belly with the stripe on it, and a little skinner than the female. I got them at the LFS here in Boulder. Great fish, I highly recommend them.

Hey King! Ya, I have 2 Indian dwarf puffers in my 20gal. They are awesome. They're with some Tiger Barbs, Otos and shrimp and everyone seems to get along. They love snails and will clear your tank of them, so I feed them some out of my 10gal every other day or so. This keeps their teeth from becoming overgrown, plus It's a blast watching them hunt the snails.